You publish to your public feed from your private Activity tab. Activity is your private inbox of everything the platform has logged, and you pick what leaves it. Nothing is shared unless you post it.
How to post
In Activity, each item has a Post to Feed button (items you have already posted show a Published marker instead). The dialog shows a preview of what you are about to post, a message field (up to 280 characters) to add your own context, and a clear note that the post will be public. You can also post from the journal or terminal: on a trade row, Post on Feed and Generate Card sit together in one dropdown.
You control the numbers
When you post a PnL card, you decide what shows: toggle whether the profit and loss amount is visible at all, and whether it shows as a dollar figure or a percentage. The preview updates live, so you see exactly what others will see before you publish.
What a post shows
Each post shows its type (PnL card or milestone), the date, the content, your message, and a verified label. A trade post shows instrument, side, entry, exit, duration, and P&L, with your privacy choices applied. You can remove any post from your public feed with the trash icon on it.
Why posting your losses is worth it
Because every card is verified, a losing trade is worth posting too. A stop hit on a news spike, posted with a note on what happened, next to a good week, is honest and genuinely useful, to you and to anyone learning alongside you. The story behind a trade is often worth more than the number.